Patents by Inventor Mark Lea-Wilson
Mark Lea-Wilson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11965537Abstract: A shear coupling can be used with reciprocating and rotary pumps. The shear coupling uses a shear nut and connecting member as the shear element. The connecting member and shear nut are located inside the axial bore of the shear coupling to protect from corrosive wellbore elements. The coupling members may be connected by matching polygonal shaft and hub profiles on the coupling members to transmit torque. The shaft and hub may have octagonal profiles for better torque transmission capacity. The shear nut may be isolated from large alternating stresses due to pretensioning of the connecting member. The length of the connecting member, especially when pretensioned, and a reduced cross-section that may be formed on the outer surface of the shear coupling increase the overall flexibility of the shear coupling, thereby increasing the resistance to bending stress.Type: GrantFiled: August 8, 2022Date of Patent: April 23, 2024Assignee: PLAINSMAN MFG. INC.Inventors: Tyler J. Dyck, Shane T. Mcassey, Mark A. Lea-Wilson
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Publication number: 20220381094Abstract: A shear coupling can be used with reciprocating and rotary pumps. The shear coupling uses a shear nut and connecting member as the shear element. The connecting member and shear nut are located inside the axial bore of the shear coupling to protect from corrosive wellbore elements. The coupling members may be connected by matching polygonal shaft and hub profiles on the coupling members to transmit torque. The shaft and hub may have octagonal profiles for better torque transmission capacity. The shear nut may be isolated from large alternating stresses due to pretensioning of the connecting member. The length of the connecting member, especially when pretensioned, and a reduced cross-section that may be formed on the outer surface of the shear coupling increase the overall flexibility of the shear coupling, thereby increasing the resistance to bending stress.Type: ApplicationFiled: August 8, 2022Publication date: December 1, 2022Inventors: Tyler J. DYCK, Shane T. MCASSEY, Mark A. LEA-WILSON
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Patent number: 11428259Abstract: A shear coupling can be used with reciprocating and rotary pumps. The shear coupling uses a shear nut and connecting member as the shear element. The connecting member and shear nut are located inside the axial bore of the shear coupling to protect from corrosive wellbore elements. The coupling members may be connected by matching polygonal shaft and hub profiles on the coupling members to transmit torque. The shaft and hub may have octagonal profiles for better torque transmission capacity. The shear nut may be isolated from large alternating stresses due to pretensioning of the connecting member. The length of the connecting member, especially when pretensioned, and a reduced cross-section that may be formed on the outer surface of the shear coupling increase the overall flexibility of the shear coupling, thereby increasing the resistance to bending stress.Type: GrantFiled: May 22, 2020Date of Patent: August 30, 2022Assignee: Plainsman Mfg. Inc.Inventors: Tyler J. Dyck, Shane T. Mcassey, Mark A. Lea-Wilson
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Publication number: 20210301857Abstract: A shear coupling can be used with reciprocating and rotary pumps. The shear coupling uses a shear nut and connecting member as the shear element. The connecting member and shear nut are located inside the axial bore of the shear coupling to protect from corrosive wellbore elements. The coupling members may be connected by matching polygonal shaft and hub profiles on the coupling members to transmit torque. The shaft and hub may have octagonal profiles for better torque transmission capacity. The shear nut may be isolated from large alternating stresses due to pretensioning of the connecting member. The length of the connecting member, especially when pretensioned, and a reduced cross-section that may be formed on the outer surface of the shear coupling increase the overall flexibility of the shear coupling, thereby increasing the resistance to bending stress.Type: ApplicationFiled: May 22, 2020Publication date: September 30, 2021Inventors: Tyler J. DYCK, Shane T. MCASSEY, Mark A. LEA-WILSON
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Patent number: 9663999Abstract: A shearing mechanism in which a male component mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess. A shearing component is provided within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component. An opening is provided within one or both of the male component and female component, the opening being aligned with the annular recess. Stress relief is provided.Type: GrantFiled: October 10, 2014Date of Patent: May 30, 2017Assignee: Plainsman Manufacturing Inc.Inventors: Mark A. Lea-Wilson, Shane McAssey
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Patent number: 9303466Abstract: A coupling assembly is disclosed for connecting and centralizing a first threaded-end member and a second threaded-end member, the coupling assembly comprising: a mandrel having a rotor receiving surface bounded by a first stop and a second stop, the mandrel having a first threaded pin at a first end for connection to a first threaded box coupling for the first threaded-end member, and a second threaded pin at a second end for connection to a second threaded box coupling for the second threaded-end member; each of the first stop and the second stop having respective outer diameters and the respective outer diameters being less than or equal to the respective outer diameters of the first threaded box coupling and the second respective box coupling; and a rotor with raised fins mounted on the rotor receiving surface between the first stop and the second stop.Type: GrantFiled: September 30, 2011Date of Patent: April 5, 2016Assignee: Plainsman Mfg. Inc.Inventors: Leroy A. Makelki, Mark A. Lea-Wilson, Damon B. Larson
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Patent number: 8997849Abstract: A shearing mechanism in which a male component mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess. A shearing component is provided within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component. An opening is provided within one or both of the male component and female component, the opening being aligned with the annular recess. Stress relief is provided.Type: GrantFiled: November 28, 2011Date of Patent: April 7, 2015Assignee: Plainsman Manufacturing Inc.Inventors: Mark A. Lea-Wilson, Shane McAssey
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Publication number: 20150030374Abstract: A shearing mechanism in which a male component mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess. A shearing component is provided within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component. An opening is provided within one or both of the male component and female component, the opening being aligned with the annular recess. Stress relief is provided.Type: ApplicationFiled: October 10, 2014Publication date: January 29, 2015Inventors: Mark A. Lea-Wilson, Shane McAssey
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Publication number: 20130032326Abstract: A shearing mechanism in which a male component mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess. A shearing component is provided within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component. An opening is provided within one or both of the male component and female component, the opening being aligned with the annular recess. Stress relief is provided.Type: ApplicationFiled: November 28, 2011Publication date: February 7, 2013Applicant: PLAINSMAN MANUFACTURING INC.Inventors: Mark A. Lea-Wilson, Shane McAssey
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Publication number: 20120193089Abstract: A coupling assembly is disclosed for connecting and centralizing a first threaded-end member and a second threaded-end member, the coupling assembly comprising: a mandrel having a rotor receiving surface bounded by a first stop and a second stop, the mandrel having a first threaded pin at a first end for connection to a first threaded box coupling for the first threaded-end member, and a second threaded pin at a second end for connection to a second threaded box coupling for the second threaded-end member; each of the first stop and the second stop having respective outer diameters and the respective outer diameters being less than or equal to the respective outer diameters of the first threaded box coupling and the second respective box coupling; and a rotor with raised fins mounted on the rotor receiving surface between the first stop and the second stop.Type: ApplicationFiled: September 30, 2011Publication date: August 2, 2012Applicant: PLAINSMAN MANUFACTURING INC.Inventors: Leroy A. Makelki, Mark A. Lea-Wilson, Damon B. Larson
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Patent number: 8092191Abstract: A control system for a reciprocating device which includes a switching valve for directing fluid supply under pressure to one of two drive lines in an alternating manner, means for alternating the switching valve, and an exhaust circuit including and exhaust outlet, a first flow restrictor disposed between one drive line and the exhaust outlet, and a second flow restrictor disposed between the other drive line and the exhaust outlet. The system may include a selection valve for alternately connecting one of two drivelines to the exhaust outlet.Type: GrantFiled: October 8, 2008Date of Patent: January 10, 2012Assignee: Plainsman Mfg. Inc.Inventor: Mark Lea-Wilson
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Patent number: 8082837Abstract: A control system for a reciprocating device includes a switching valve, a toggle for operating the valve, a trigger associated with the reciprocating device to actuate the toggle, and biasing means disposed on the trigger for applying a biasing force to the toggle. The valve includes a first drive line, a second drive line, a fluid supply inlet and a fluid exhaust outlet. The valve switches between the first and second drive lines upon actuation of the toggle by the trigger, to switch direction of the reciprocating device.Type: GrantFiled: September 3, 2008Date of Patent: December 27, 2011Assignee: Plainsman Mfg. Inc.Inventor: Mark Lea-Wilson
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Patent number: 8020582Abstract: An excess flow valve having a housing, a valve seat, a poppet and an adjusting ring. The adjusting ring lies within a bore in the housing and there is an opening through the housing permitting access to the adjustment ring from outside the bore of the housing. Rotation of the adjusting ring controls the maximum travel distance between the poppet and the valve seat. In an embodiment a travelling valve guide is rotatably mounted within the adjustment ring to change the maximum travel distance between the poppet and the valve seat. A spring may bias the poppet and the valve seat away from each other.Type: GrantFiled: January 27, 2007Date of Patent: September 20, 2011Assignee: Plainsman Manufacturing Inc.Inventors: Mark A. Lea-Wilson, Dan Brian F. Fajayan
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Publication number: 20090097985Abstract: A control system for a reciprocating device which includes a switching valve for directing fluid supply under pressure to one of two drive lines in an alternating manner, means for alternating the switching valve, and an exhaust circuit including and exhaust outlet, a first flow restrictor disposed between one drive line and the exhaust outlet, and a second flow restrictor disposed between the other drive line and the exhaust outlet. The system may include a selection valve for alternately connecting one of two drivelines to the exhaust outlet.Type: ApplicationFiled: October 8, 2008Publication date: April 16, 2009Applicant: PLAINSMAN MFG. INC.Inventor: Mark LEA-WILSON
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Publication number: 20090071323Abstract: A control system for a reciprocating device includes a switching valve, a toggle for operating the valve, a trigger associated with the reciprocating device to actuate the toggle, and biasing means disposed on the trigger for applying a biasing force to the toggle. The valve includes a first drive line, a second drive line, a fluid supply inlet and a fluid exhaust outlet. The valve switches between the first and second drive lines upon actuation of the toggle by the trigger, to switch direction of the reciprocating device.Type: ApplicationFiled: September 3, 2008Publication date: March 19, 2009Applicant: PLAINSMAN MFG. INC.Inventor: Mark LEA-WILSON
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Publication number: 20080178946Abstract: An excess flow valve having a housing, a valve seat, a poppet and an adjusting ring. The adjusting ring lies within a bore in the housing and there is an opening through the housing permitting access to the adjustment ring from outside the bore of the housing. Rotation of the adjusting ring controls the maximum travel distance between the poppet and the valve seat. In an embodiment a travelling valve guide is rotatably mounted within the adjustment ring to change the maximum travel distance between the poppet and the valve seat. A spring may bias the poppet and the valve seat away from each other.Type: ApplicationFiled: January 27, 2007Publication date: July 31, 2008Applicant: PLAINSMAN MANUFACTURING INC.Inventors: Mark A. Lea-Wilson, Dan Brian F. Fajayan